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Best time to visit Charleston, SC, USA

Our verdict

The best time to visit Charleston is March

Charleston is a place lots of people visit almost all year round, but if you’re looking for the best time to go, March is definitely the time you should visit. This is based on a number of factors such as the weather, cost of flights and accommodation, peak travel periods and more.

During the warmer months, temperatures in Charleston can rise to a maximum of 32℃ (90℉). The weather at night in the winter can get down to temperatures as low as 4℃ (39℉).

If you’re a sun-chaser and want to visit Charleston when the days are longest, you should visit in July. On average it rains the most days in August, making it the wettest month of the year. Although it’s the wet season, it can often rain a little bit during the day or evening but have fine weather for a majority of the day too, so don’t let this put you off.

To learn everything you need to know (and none of the stuff you don’t) about when to visit Charleston, keep reading below. Plus, you’ll find tools to help you get the best deals on travel and hotels too!

Warmest month

July

Least rainfall

January

Most daylight

July

Charleston seasons

Before you continue, it’s important to know when the seasons are in Charleston as they might be different to yours depending on where in the world you’re travelling from. Charleston is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Charleston

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Charleston for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Charleston climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Charleston for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Charleston in January

  • Average temperature: 11℃ (51℉)
  • Average high temperature: 14℃ (57℉)
  • Average low temperature: 7℃ (45℉)
  • Average humidity: 73%
  • Average sunny days: 19 days
  • Average rainfall: 36mm (1") over 10 days
19 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Charleston in January, make sure you pack a warm jacket or coat.


Charleston in February

  • Average temperature: 12℃ (54℉)
  • Average high temperature: 16℃ (60℉)
  • Average low temperature: 9℃ (48℉)
  • Average humidity: 75%
  • Average sunny days: 16 days
  • Average rainfall: 51mm (2") over 11 days
16 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Charleston in February, make sure you pack a warm jacket or coat.


Charleston in March

  • Average temperature: 15℃ (59℉)
  • Average high temperature: 18℃ (65℉)
  • Average low temperature: 11℃ (53℉)
  • Average humidity: 73%
  • Average sunny days: 17 days
  • Average rainfall: 56mm (2") over 12 days
17 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Charleston in March, make sure you pack a warm jacket or coat.


Charleston in April

  • Average temperature: 19℃ (67℉)
  • Average high temperature: 23℃ (73℉)
  • Average low temperature: 16℃ (60℉)
  • Average humidity: 74%
  • Average sunny days: 16 days
  • Average rainfall: 72mm (3") over 13 days
16 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Charleston in April, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Charleston in May

  • Average temperature: 23℃ (74℉)
  • Average high temperature: 26℃ (79℉)
  • Average low temperature: 20℃ (68℉)
  • Average humidity: 75%
  • Average sunny days: 13 days
  • Average rainfall: 73mm (3") over 16 days
13 days
of pure sunshine
16 days
of showers or rain

What to pack: If you’re heading to Charleston in May, make sure you pack t-shirts and light clothing.


Charleston in June

  • Average temperature: 27℃ (80℉)
  • Average high temperature: 30℃ (86℉)
  • Average low temperature: 24℃ (75℉)
  • Average humidity: 75%
  • Average sunny days: 7 days
  • Average rainfall: 103mm (4") over 20 days
7 days
of pure sunshine
20 days
of showers or rain

What to pack: If you’re heading to Charleston in June, make sure you pack t-shirts and light clothing.


Charleston in July

  • Average temperature: 28℃ (82℉)
  • Average high temperature: 31℃ (88℉)
  • Average low temperature: 25℃ (77℉)
  • Average humidity: 75%
  • Average sunny days: 6 days
  • Average rainfall: 118mm (5") over 23 days
6 days
of pure sunshine
23 days
of showers or rain

What to pack: If you’re heading to Charleston in July, make sure you pack t-shirts and shorts.. It stays warm all day and night.


Charleston in August

  • Average temperature: 28℃ (82℉)
  • Average high temperature: 31℃ (87℉)
  • Average low temperature: 25℃ (77℉)
  • Average humidity: 76%
  • Average sunny days: 4 days
  • Average rainfall: 153mm (6") over 24 days
4 days
of pure sunshine
24 days
of showers or rain

What to pack: If you’re heading to Charleston in August, make sure you pack t-shirts and shorts.. It stays warm all day and night.


Charleston in September

  • Average temperature: 25℃ (78℉)
  • Average high temperature: 29℃ (84℉)
  • Average low temperature: 23℃ (73℉)
  • Average humidity: 75%
  • Average sunny days: 8 days
  • Average rainfall: 127mm (5") over 18 days
8 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to Charleston in September, make sure you pack t-shirts and light clothing.

Charleston in October

  • Average temperature: 21℃ (70℉)
  • Average high temperature: 24℃ (76℉)
  • Average low temperature: 18℃ (64℉)
  • Average humidity: 74%
  • Average sunny days: 19 days
  • Average rainfall: 79mm (3") over 11 days
19 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Charleston in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Charleston in November

  • Average temperature: 15℃ (60℉)
  • Average high temperature: 19℃ (66℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 74%
  • Average sunny days: 18 days
  • Average rainfall: 49mm (2") over 9 days
18 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Charleston in November, make sure you pack a light jumper or hoodie.


Charleston in December

  • Average temperature: 13℃ (55℉)
  • Average high temperature: 16℃ (61℉)
  • Average low temperature: 10℃ (49℉)
  • Average humidity: 78%
  • Average sunny days: 18 days
  • Average rainfall: 108mm (4") over 11 days
18 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Charleston in December, make sure you pack a warm jacket or coat.


Top FAQs

The hottest month of the year in Charleston is usually July, where temperatures tend to rise to around 31℃ (88℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Charleston is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in Charleston is generally around August, although the wetter season can sometimes extend a few months either side of August too.
If you want to get the most out of your time visiting Charleston, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Charleston map